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We should check if the incoming parameter file_mapping is not NULL instead
of checking after adding an offset.
Reported-by: Coverity CID 307210
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Acked-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
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Fix control flow issues and null pointer dereferences.
Signed-off-by: Joao Marcos Costa <jmcosta944@gmail.com>
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Fix defects such as uninitialized variables and untrusted pointer
operations. Most part of the tainted variables and the related defects
actually comes from Linux's macro get_unaligned_le**, extensively used
in SquashFS code. Add sanity checks for those variables.
Signed-off-by: Joao Marcos Costa <joaomarcos.costa@bootlin.com>
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Add support for SquashFS filesystem. Right now, it does not support
compression but support for zlib will be added in a follow-up commit.
Signed-off-by: Joao Marcos Costa <joaomarcos.costa@bootlin.com>
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